Magnifying power of objective of compound microscope is 5. If magnifying power of compound microscope is 30, then magnifying power of eye-piece will be ......

Options

A. 1
B. 3
C. 6
D. 9

Answer

C

Explanation

`m_0` = 5 = magnifying power of objective
`m_e` = magnifying power of eye-piece
m = 30 = magnifying power of compound microscope
Magnifying power of compound microscope,
`m=m_0xxm_e`
`thereforem_e=(m)/(m_0)`
`therefore m_e=(30)/(5)=6`